#container{
    width: 700px;
    margin: 0px auto;
    position: relative;
}

#top{
    width: 700px;
    height: 120px;
    background-color: cadetblue;
}

#left{
    width: 180px;
    height: 700px;
    margin-top: 2px;
    float: left;
    background-color: cornflowerblue;
}

#right{
    width: 518px;
    height: 700px;
    float: left;
    margin-top: 2px;
    margin-left: 2px;
    background-color: darkcyan;
}